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EulerOS 2.0 SP8 : haproxy (EulerOS-SA-2020-1805)

critical Nessus Plugin ID 139135

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the haproxy package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.(CVE-2019-19330)

 - A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the 'chunked' value were not being correctly rejected. The impact was limited but if combined with the 'http-reuse always' setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).(CVE-2019-18277)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected haproxy packages.

See Also

http://www.nessus.org/u?3e1c39f2

Plugin Details

Severity: Critical

ID: 139135

File Name: EulerOS_SA-2020-1805.nasl

Version: 1.5

Type: local

Published: 7/30/2020

Updated: 2/27/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-19330

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:haproxy, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/30/2020

Reference Information

CVE: CVE-2019-18277, CVE-2019-19330